Mecha Mario is a robotic double of Mario built by Bowser's "secret assistant." He had appeared only once, briefly in the beginning of Episode 7. What Mecha Mario's exact role during the series' 2006 run is unknown. He might have been the secret weapon Bowser said he had aboard the Omega Doomship in Episode 8 and would have likely appeared in later episodes aboard the Doomship. While it never makes an appearance again, it is likely this Mecha version of Mario would've made for an imposing threat